McHenry County (Illinois)

administration
McHenry County Courthouse
US state :	Illinois
Administrative headquarters :	Woodstock
Address of the administrative headquarters:	McHenry County Government Center 2200 North Seminary Ave Woodstock, IL 60098
Foundation :	January 16, 1836
Made up from:	Cook County LaSalle County
Area code :	001 815
Demographics
Residents :	308,760 (2010)
Population density :	200.1 inhabitants / km ²
geography
Total area :	1563 km²
Water surface :	20 km²
map

The McHenry County is a county in the US -amerikanischen State Illinois . In 2010 , the county had 308,760 people and a population density of 200.1 people per square kilometer. The county seat is Woodstock .

McHenry County is part of the Chicago metropolitan area .

geography

The county is located in the far north of Illinois in the northwest suburb of Chicago on the border with Wisconsin . It has an area of 1563 square kilometers, of which 20 square kilometers are water. The following neighboring counties border McHenry County (Illinois):

	Walworth County, Wisconsin	Kenosha County, Wisconsin
Boone County		Lake County
DeKalb County	Kane County	Cook County

history

Population development
Census	Residents	± in%
1840	2578	-
1850	14,978	481%
1860	22,089	47.5%
1870	23,762	7.6%
1880	24,908	4.8%
1890	26,114	4.8%
1900	29,759	14%
1910	32,509	9.2%
1920	33.164	2%
1930	35,079	5.8%
1940	37,311	6.4%
1950	50,656	35.8%
1960	84.210	66.2%
1970	111,555	32.5%
1980	147,897	32.6%
1990	183.241	23.9%
2000	260.077	41.9%
2010	308.760	18.7%
Before 1900 1900–1990 2000 2010

McHenry County was formed on January 16, 1836 from parts of Cook County and LaSalle County . It was named after William McHenry , a White County pioneer and US Senator.

Territorial development

The county used to extend as far east as Lake Michigan .

McHenry County when it was founded in 1836
1839 until today

Demographic data

According to the 2010 census , McHenry Counties had 308,760 people in 108,361 households. The population density was 200.1 inhabitants per square kilometer. Statistically, 2.83 people lived in each of the 108,361 households.

The racial the population was composed of 94.3 percent white, 1.3 percent African American, 0.5 percent Native American, 2.6 percent Asian and other ethnic groups; 1.3 percent were descended from two or more races. Hispanic or Latino of any race was 11.7 percent of the population regardless of ethnicity.

26.7 percent of the population were under 18 years old, 53.7 percent were between 18 and 64 and 19.6 percent were 65 years or older. 50.2 percent of the population was female.

The median income for a household was 76,909 USD . The per capita income was $ 32,318. 6.9 percent of the population lived below the poverty line.

Localities in McHenry County

Citys

Villages

Census-designated places (CDP)

Other Unincorporated Communities

^{1 - partly in Kane County

2 - partly in Cook , Kane and Lake County

3 - partly in Lake County}

structure

McHenry County is divided into 17 townships :

Township	Population (2010)	FIPS
Alden Township	1402	17-00607
Algonquin Township	88,389	17-00698
Burton Township	5003	17-10032
Chemung Township	9134	17-12892
Coral Township	3552	17-16314
Dorr Township	20,911	17-20396
Dunham Township	2844	17-21111
Grafton Township	53,137	17-30666
Greenwood Township	13,990	17-31680

Township	Population (2010)	FIPS
Hartland Township	2031	17-33305
Hebron Township	2356	17-33864
McHenry Township	47,653	17-45707
Marengo Township	7564	17-46799
Nunda Township	38,245	17-54495
Richmond Township	6683	17-63654
Riley Township	2922	17-64096
Seneca Township	2944	17-68653